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SDM-SIO4 4-Channel Serial I/O Interface User Guide
1-2
Switches -
Go to 1 if command
line active
To Other Ports
To Other Ports
1
PORT
Handshake
Control
Tx Buffer Rx Buffer
Command Line
Control
Datalogger
Command
Control
CRC/SIG
Driver
Format
Driver
& User
Strings
CRC/SIG
Driver
Filter Driver
Converted
Data Buffer
1
0
0
K K K
Handshake Line
Command Line
Switch
Status
LED
Datalogger can
Execute Command
Line Commands
Rx
Tx
Figure 1 Schematic Diagram of the SDM-SIO4
Data HS SDE
C1 C2 C3
to SDM port
of datalogger
Control Lines
Data Lines